Massaging implement.



PATENTBD AUG. 11, 1903.

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J. J. GROBB MASSAGING IMPLEMENT.

`APIE'LIOMIQN FILED un. 27, 1903.

NTTED STATES ratented August 11, 190e.

PATENT OFFICE.

JULIUS J. GROBE, OF CHICAGO, ILLINOIS, ASSIGNOR TO VICTOR ELECTRIC Y COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

MASSAGING llVl PLEM ENT.

SPECIFICATION forming part of Letters Patent No. 735,968, dated August 11, 1903. Application filed April 27, 1903. Serial No. 154,473 (No model.)

To all whom, t may concern:

Be it known that I, .IULIUS J. GROBE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and usefulImprovement in Massaging Implements, of which the following is a specification;V

This invention relates to an improvement in massaging implements of the class in which' a handle on the end of a flexible shaft and adapted to be held in one hand by the operator contains a rotary shaft driven by the iiexible shaft and a projecting massaging attachment which is vibrated by the rotary shaft.

My object is to provide changeable powertransmitting means between the rotary shaft and massaging-attachment holder whereby the latter may be given either a longitudinally -reciprocating or laterally-oscillating movement,or both,simultaneously and whereby the degree of either said movement may be regulated at the will of the operator.

It is also my object to provide a massaging implement having the aforesaid features so constructed as to be particularly light, compact, durable, and desirable for its purpose.

lIn the drawings, Figure 1 is a broken longitudinal section of the implement, showing the powertransmitting cam or eccentric mechanism adjusted to eifect oscillation only of the attachment; Fig. 2, a similar section of the head portion of the implement, showing it adjusted for effecting simultaneous oscillation and reciprocation of the attachment-holder.; Fig. 3, a view the same as Fig. 2, but showing the parts adj usted for producing reciprocation only of the attachment-holder; Fig. 4, a face viewof the head portion of the implementwith'parts removed to show the oscillating connection;v

Fig. 5, a rear view of the reciprocating connection; Fig. 6, a sectional detail view showing the'rear face of the cam or eccentric on the rotary shaft and adjustable thereon to change its throw, and Fig. 7 an adjustingkey for the cam.

A is a sleeve-piece forlned with a tubular shank portion ct and enlarged neck portion b, and provided at its forward end with an inte- 'sition.

gral plate or head c. j The rear end of the-shank a is threaded to receive a coupling d, which is on the end of the casing of a flexible shaft. (Not shown.) On the coupling d is an annular shoulder cl.

Surrounding the shank a and confined between the shoulder d' and the shoulder presented by the neck portion b is a tubular handle B. Interposed between the handlev B and shank a are springs e, forming a yielding connection between the shank and handle to neutralize vibrations against the handle when the implement is in use.

In the` neck portion b is a longitudinallysliding bearing-sleeve f, and the neck portion has an elongated slot g. A thumb-screw h passes loosely through the slot g and engages the bearing-sleevef. By means of this thumbscrew the bearing-sleeve may be moved longitudinally and tightened in any adj usted po- Journ'aled in the bearing-sleeve f is a shaft C, having a socket t" in its rear end concentric with its circumference and provided in its forward end with a smaller eccentric-socket t. .Iournaled in the eccentricsocket t" is a shaft k, carrying beyond the outer face of the head c a cam or eccentric D. The bearing-sleeve f surrounds the shaft C between the cam D` and a pin l on the shaft, whereby the shaft is free to rotate in the sleeve, but is confined against independent longitudinal movement therein. The shaft lo is held in the bearing-socket vl' against longitudinal movement therein, while being free to turn independently of the shaft C. The

-rear face of the cam or eccentric D is formed with a ratchet comprising radial serrations presenting inclined faces m and abrupt shoulders m. In the end of the shaft C parallel with the socket t" is a still smaller socket i?, containing a spring-pawln, which ispressed by its spring against the serrated face of the cam D.

E is a shaft journaled in the shank aand connected with the iiexible shaft. (Not shown.) Along the forward end portion of the shaft E at one side is a longitudinal groove or keywayvp. The shaft E extends at its forward end loosely into the socket t' of the shaft C. The shaft C may be slid longitudinally with re- IOO lation to the shaft E,and theyare held against independent turning by a pin or featherp' on the shaft C entering the groove p.

F is a lever fastened against the face of the head c by a fulcruni-screw q. Above its fulcrum the lever F is forked to present straight faces lr r a distance apart slightly exceeding the diameter of the cam D and adapted to embrace the same. The lever F is forked below the fulcrum q to present a guide-recess s.

G is a pitman having an opening t near its upper end slightly exceeding in diameter the diameter of the cam D and in line with the latter. Toward its lower end the pitman is pivotally connected, by means of a screw t', with a block orattachment-holder H, movable in the guide-socket s of the lever F.

Fitting against the head c and fastened thereto is a cap I. In the said cap in the position shown is a set-screw o, which at its inner end bears gently against the face of the pitman G to hold it against the face of the lever F.

In the lower end of the attachment-holder H is a socket w, adapted to receive and hold the shank of the massaging attachment K. The holder H projects outward through an elongated opening in the lower side of the cap I.

When the parts are in the position shown in Fig. 1, rotation of the shaft E causes it to turn the shaft C. The engagement of the pawl 'n with the cam D causes the latter to turn with the shaft, and as it extends only between the forks of the lever F it produces lateral vibration or oscillation of the said lever and attachment-holder H. As the cam does not engage the opening 1f of the pitman G, the latter is unaffected. To change the adjustment from that shown in Fig. l to that shown in Fig. 2, the thumb-screw h is loosened slightly and slid along to slide the sleevebearing fand cause the cam D to enter the opening t of the pitman G without disengaging the lever F. This adjustment causes the lever F to be oscillated to oscillate the attachment-holder H and the latter also to be reciprocated by the pitman. Thus vibrations consisting of oscillations and reciprocaiions are given to themassaging attachment. In Fig. 3 the bearing-sleeve fhas been adjusted to cause the cam to disengage the lever F and engage only the pitman G. In this adjustment reciprocating motion only is given to the attachment-holder and massaging attachment K. The flexible shaft to which the handle or implement is attached turns only in one direction, and in its turningthe pawl n engages one of the shoulders m of the cam. The throw of the cam may be increased or diminished by turning it in the socket i. The adjustment of the cam may be changed by inserting a key, such as the key L, Fig. 7, through an opening fg in the cap and causing it to engage a keyhole c' in the end of the shaft 7a. Turning of the cam by means of the key in the direction contrary to its4 normal movement causes it to wipe across the pawl and turn in the socket 'i'. Thus it will be seen that the attachment may be given any degree of reciprocation, oscillation, or both, and the changes may be effected while the shaft is being rotated.

Obviously changes in minor details of construction may be made without departing from the spirit of myinvention as defined by the claims.

What I claim as new, and desire to secure by Letters Patent, isl l. In a massaging implement, the combination of a rotary shaft,a single massaging-attachment holder, and power transmitting mechanism between said shaft and holder adjustable to produce either reciprocation or oscillation of said holder.

2. In a massagingimplement, the combination of a rotary shaft, a single massaging-attachment holder, and power-transmitting mechanism between said shaft and holder adjustable to produce either reciprocation or oscillation or simultaneously reciprocation and oscillation of said holder.

3. In a massaging implement, the combination of a rotary shaft, a massaging-attach ment holder, a reciprocating connection for said holder, an oscillating connection for said holder, an eccentric on said shaft, and means for effecting operative engagement between said eccentric and either of said connections.

4. In a massaging implement, the combination of a rotary shaft, a massagingattachment holder, a reciprocating connection for said holder, an oscillating connection for said holder, an eccentric on said shaft, and means for effecting operative engagement between said eccentric and either of said connections, or with both of said connections simultaneously.

5. In a massaging implement, the combination of a rotary shaft, a massagingattachment holder, a reciprocating connection for said holder, an oscillating connection for said holder, an eccentric on said shaft, and means upon the implement for moving said eccentric into and out of engagement with either of said connections.

6. In a massaging implement, the combina tion with a casing of a rotary shaft journaled therein, a massaging-attachment holder, a reciprocating connection for said holder, an oscillating connection for said holder, an eccentric on said shaft, and means upon said casing for moving said shaft longitudinally to cause the cam to engage either of said connections at will.

7. In a massaging implement, the combination with a casing of a rotary shaft journaled therein, a massaging-attachment holder, areciprocating connection for said holder, an oscillating connection for said holder, an eccentric on said shaft, and means upon said casing for moving said shaft longitudinally.

to cause the cam to engage either or both of said connections at will.

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8. In a massaging implement, theoombination of a rotary shaft, a massaging-attachment holder, a vibrator for said holder, an operating-cam for said vibrator on the shaft, and means for adjusting the cam on the shaft to change its eooentrioity.

9. In a massaging implement, the combination of a rotary shaft, a massaging-attachment holder, a Vibrator for said holder, an operating-cam for said vibrator on the shaft, a paWl-and-ratohet connection between the cam and shaft, and means for adjusting the cam on the shaft to change its eooentrioity, all constructed and arranged to operate substantially as set forth.

lO. In a massaging implement, the combination with the easing of a rotary shaft journaled in the casing, a massaging-attachment JULIUS J. GROBE.

In presence oli--a WALTER N. WINBERG, W. B. DAvIEs. 

